New energy transmission inspection and detection final assembly production line

Abstract

The invention relates to the technical field of transmissions, in particular to a new energy transmission inspection and detection final assembly production line. Comprising a mounting mechanism, a conveying mechanism and a detection mechanism, the mounting mechanism comprises a support frame, a bearing plate and a deflection motor; the deflection motor is arranged on the side wing plate, so that the bearing plate can deflect by a preset angle R; the conveying mechanism comprises a supporting column, a supporting plate, a rotating lead screw, a guide rod, a conveying motor and a hoisting piece. The hoisting piece is integrally arranged on the rotating lead screw and the guide rod, and is configured to be capable of ascending and descending by a preset height at a preset first limiting position to complete fastening and hoisting of a transmission box body and to be transferred to a preset second limiting position to complete assembly operation of transmission parts; and next, continuing to move right for a preset distance to reach a third limit to complete the air tightness test operation of the transmission box. According to the invention, material zoning planning and conveying, multi-angle efficient assembly of transmission parts and efficient operation of air tightness detection and inspection are integrated, and the production efficiency of transmission final assembly is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmissions and drive devices, and in particular to a new energy transmission inspection and testing assembly production line. Background Art

[0002] The gearbox, also known as the transmission, is an automotive accessory used to change the speed and torque from the engine, and can fix or change the transmission ratio of the output shaft and the input shaft in stages. The gearbox is a very important component on the vehicle. It can change the transmission ratio and expand the torque and speed of the drive wheel. With the development of modern technology, the gearbox has also been upgraded, from the initial manual gearbox to the current continuously variable gearbox, from no synchronizer to synchronizer, and the control is becoming more and more convenient. At present, diesel engines are widely used in engineering machinery. The torque and speed variation range is small, which cannot meet the requirements of the vehicle for traction and driving speed under various working conditions. The gearbox is needed to solve this contradiction. The performance of the gearbox is the key to measure the power, economy and driving performance of engineering machinery. The current transmission systems mainly include: mechanical transmission, hydraulic transmission, and hydrostatic transmission. The gearbox has manual shifting and power shifting, and the structure has fixed shaft type and planetary type. However, the production, assembly and use of new energy transmission parts in the existing technology are not good. The traditional transmission case assembly production line has a relatively complex structure. The transmission case, bearings, shafts, fastening bolts and other materials need to be transferred to the material area by forklifts. The staff need to pick them up one by one for installation. The structural design is unreasonable, the material partitioning is not standardized, and there is a lot of time wasted in the operation. At the same time, the weight of the transmission case is heavy. Such operations are not only time-consuming and labor-intensive, but also pose a great personal safety hazard. At the same time, it also seriously restricts the production and assembly efficiency of new energy transmissions. Furthermore, in the assembly of transmission parts and bolt fixing processes, the traditional workbench requires manual flipping of the transmission case or manual relative movement in a circle to select the appropriate angle and position for installation, which is time-consuming and labor-intensive, and the installation efficiency is slow. At the same time, after the traditional transmission case parts and other structures are assembled, the transmission needs to be tested for air tightness. However, due to the space layout in the factory workshop, there is a long distance between the transmission case assembly process and the air tightness test process in the traditional operation method. At the same time, the transmission air tightness detection operation is manually performed by inserting and tightening the pipeline; then the air pressure test is started and the indication parameters of the detection instrument are observed to make a judgment. This method is very inconvenient and not intelligent enough, which seriously reduces the efficiency of the transmission air tightness detection and inspection. Summary of the invention

[0003] In order to solve the above-mentioned shortcomings and deficiencies in the use of air tightness testing in the prior art transmission production, assembly and use, the present invention provides a new energy transmission inspection and testing assembly production line that integrates material zoning planning and transportation, multi-angle efficient assembly of transmission parts, and efficient air tightness testing and inspection, has a compact structure and reasonable design, a simplified manufacturing process, saves more than 30% of materials, effectively reduces manufacturing costs, and improves the production efficiency of transmission assembly.

[0004] The present invention adopts the following technical solutions to achieve the above purpose: A new energy transmission inspection and testing assembly production line includes an installation mechanism, a conveying mechanism and a testing mechanism; the installation mechanism includes a support frame, a bearing plate and a deflection motor; the support frame is distributed on the left and right sides as a whole, the bearing plate is arranged on the support frame through a rotating shaft, the deflection motor is arranged on one of the side wing plates, and the output shaft is connected to the rotating shaft, so that the bearing plate can deflect a preset angle R and maintain -60<R<+60; wherein, a stepped groove is also provided at the center of the bearing plate for adapting to the installation of a transmission case; a fixing member for fastening the transmission case is also provided at the stepped groove The transmission mechanism comprises a support column, a support plate, a rotating lead screw, a guide rod, a transmission motor and a hanging member; the support columns are vertically distributed on the support frame and are evenly distributed in a plurality of ways; the support plate is horizontally distributed and fixed to the support column by welding; the rotating lead screw is left-right distributed and arranged on the two side walls of the support plate, and a bearing is also provided at the connection between the two; the guide rod is also arranged between the two side walls of the support plate and is kept parallel to the rotating lead screw; the transmission motor is arranged on the support plate, and one end is connected to the rotating lead screw; the hanging member is arranged as a whole on the rotating The detection mechanism is arranged on the lead screw and the guide rod, and is configured to be able to rise and fall to a preset height at a preset first limit position to complete the fastening and lifting of the transmission case and move it to a preset second limit position to complete the assembly of the transmission parts, and in the next step, continue to move right by a preset distance to reach the third limit position to complete the air tightness test of the transmission case; the detection mechanism includes a detection platform, a detection plate, a detection instrument body, and a test tube; the detection platform is arranged on the right side of the support frame and is located below the support plate; the detection plate is rotatably arranged on the detection platform; the detection instrument body is fixedly installed on one side of the detection platform by bolts, and is connected by The air pipe is connected to the test tube, and the test tube includes a tube body, a pressure detection probe, and a sealing rubber joint; the tube body is distributed front and back, and an air flow channel is provided inside, the input end of the air flow channel is connected to the air pipe, and an air hole is provided at the front of the tube body; the pressure detection probe is arranged at the front end of the tube body; the sealing rubber joint is a truncated cone structure and is installed on the tube body, and is located on the rear side of the air hole; an adjusting part is also provided on one side of the test tube, so that the test tube can rise to a preset height and move forward a preset distance to complete the port sealing operation of the transmission case air tightness test.

[0005] As a preferred technical solution: the support frame includes a base and side wing plates; the base is distributed on the left and right, and the side wing plates are two symmetrically distributed and arranged on the left and right sides of the base; the purpose of such arrangement is to serve as a carrier and provide sufficient stability.

[0006] A further preferred technical solution: a material plate is provided between the two side wing plates, and the material plate is provided with a plurality of evenly distributed material slots and tool slots for storing tools; the purpose of such a setting is to make rational use of space, reasonably set up partitions within a limited support space, provide identification storage for bearings and other parts, ensure that the workstations are neat and tidy, and thus facilitate the staff to efficiently take the corresponding things, avoiding the problems of the prior art in which bearings and other parts and installation tools are placed randomly, the design is unreasonable, and the assembly efficiency is low.

[0007] A further preferred technical solution: the fasteners are divided into two symmetrically distributed groups, and each group of the fasteners includes a first cylinder, a cross arm, a connecting arm and a clamping plate; the first cylinder is vertically distributed on the supporting plate, and the cross arm is vertically connected to the output end of the first cylinder; the connecting arm extends vertically downward and is distributed on one side of the cross arm, and the clamping plate is arranged on the connecting arm to complete the clamping and fixing operation at the outer edge of the transmission case.

[0008] As a preferred technical solution: the lifting component includes a movable seat, a second cylinder, a fixed seat, a connecting rod, a tripod and a hook; the movable seat is sleeved and installed on the rotating screw and the guide rod, and the movable seat and the rotating screw maintain a threaded rotation connection, and the movable seat and the guide rod maintain a sliding connection; the second cylinder is vertically distributed on the movable seat, and the output end is connected and installed on the fixed seat; one end of the connecting rod is rotatably connected to the fixed seat, and the other end is connected to the tripod, and the hooks are two symmetrically distributed front and back, and the hook is an L-shaped structure, and one end is connected to the tripod.

[0009] A further preferred technical solution: the connecting rod, tripod and hook are an integrally formed structure, and are two groups symmetrically distributed on the left and right.

[0010] A further preferred technical solution: the conveying motor adopts a servo-controlled motor, and in the initial state, a first limit for fixing and lifting the transmission case, a second limit for assembling internal parts of the transmission case, and a third limit for air tightness testing after the transmission case is assembled are preset.

[0011] A further preferred technical solution: a support shaft extending vertically downward is arranged in the center of the detection plate, and the support shaft is connected to the detection platform via a bearing; a rotating motor is also arranged on the lower end surface of the detection platform, and the rotating motor is connected to the support shaft.

[0012] A further preferred technical solution: the adjusting part includes an auxiliary plate, a third cylinder, an auxiliary seat, a guide column, a fourth cylinder and a movable arm; the auxiliary plates are two distributed up and down and are arranged on the outside of the detector body, and the guide column is vertically distributed and arranged between the two auxiliary plates; the auxiliary seat is sleeved and installed on the guide column, and the two are maintained in sliding connection; one end of the third cylinder is connected to the auxiliary plate on one side, and the other end is connected to the auxiliary seat; the fourth cylinder is distributed front and back on the auxiliary seat; the movable arm is an L-shaped structure, and the rear end is connected to the output end of the fourth cylinder, and the front end is connected and fixed to the test tube.

[0013] A further preferred technical solution: a baffle is provided on the front side of the test bench; a red and green indicator light and a voice announcer are provided on the front side of the baffle, so that when the transmission case air tightness test is qualified, the green color of the red and green indicator lights up, and the voice announcer plays "qualified"; when the transmission case air tightness test is unqualified, the red color of the red and green indicator lights up, and the voice announcer plays "unqualified" at the same time.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a compact structure and reasonable design, and can meet the requirements of large transmission assembly in a small space. By setting the support column, support plate, rotating screw, guide rod, conveying motor and lifting parts, the preset height can be raised and lowered at the preset first limit position to complete the tightening and lifting of the transmission case and transferred to the preset second limit position to complete the assembly of the transmission parts. In the next step, the transmission case is continuously moved right by a preset distance to reach the third limit position to complete the air tightness test of the transmission case. The present invention integrates material zoning planning and conveying, multi-angle efficient assembly of transmission parts, and efficient air tightness detection and inspection. The manufacturing process is simplified, the material is saved by more than 30%, and the manufacturing cost is effectively reduced. The present invention further optimizes the design of the assembly structure of the transmission, and cooperates with the support plate and the deflection motor so that the support plate can be deflected by a preset angle R to achieve the best working angle when assembling or positioning and installing the transmission parts. At the same time, a plurality of material slots and tool slots for storing tools are arranged on the material plate, and the storage partitions are reasonably arranged, which is neat and orderly, saving time and labor, and at the same time improving the efficiency by more than 25% compared with the traditional assembly table; the air tightness test process structure is further upgraded and transformed, and through the cooperation of the auxiliary plate, the third cylinder, the auxiliary seat, the guide column, the fourth cylinder and the moving arm, the test tube can rise to a preset height and move forward a preset distance to complete the port sealing operation of the transmission case air tightness test, thereby realizing the automated operation of the transmission air tightness test, and no manual pipeline insertion and tightening operations are required. At the same time, the height can be adjusted to perform air tightness tests on transmissions of different models and specifications, and the adaptability is wider, which greatly improves the production efficiency of the transmission assembly and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 is a three-dimensional structural diagram of the fastening member of the present invention; Figure 4 for Figure 2 A magnified view of the structure of part A; Figure 5 It is a structural schematic diagram of the support frame of the present invention; Figure 6 It is an enlarged structural diagram of the hanging member of the present invention; Figure 7 It is a partial structural schematic diagram of the detection mechanism of the present invention; Figure 8 It is a cross-sectional structural diagram of the side view tube of the present invention.

[0017] In the figure: 1. mounting mechanism; 11. support frame; 111. base; 112. side wing plate; 12. bearing plate; 121. step groove; 13. deflection motor; 14. fastener; 141. first cylinder; 142. cross arm; 143. connecting arm; 144. pressing plate; 15. material plate; 151. material slot; 152. tool slot; 16. rotating shaft; 2. conveying mechanism; 21. supporting column; 22. supporting plate; 23. rotating screw; 24. guide rod; 25. conveying motor; 26. lifting member; 261. moving seat; 262. second cylinder; 263. fixed seat; 26 4. Connecting rod; 265. Tripod; 266. Hook; 3. Detection mechanism; 31. Detection table; 32. Detection plate; 33. Detection instrument body; 34. Test tube; 341. Tube body; 342. Pressure detection probe; 343. Sealing rubber joint; 344. Air flow channel; 345. Air hole; 35. Air pipe; 36. Adjustment part; 361. Auxiliary plate; 362. Third cylinder; 363. Auxiliary seat; 364. Guide column; 365. Fourth cylinder; 366. Moving arm; 37. Support shaft; 38. Rotating motor; 4. Baffle; 5. Red and green indicator lights; 6. Voice announcer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in the specific implementation of the present invention, the terms such as "first" and "second" and other relational terms that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms such as "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the possible appearance of the sentence "including a ..." and other defined elements does not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0020] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "provided with" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] Example: Figures 1 to 8 As shown: A new energy transmission inspection and testing assembly production line includes an installation mechanism 1, a conveying mechanism 2 and a testing mechanism 3. The present invention has a compact structure and a reasonable design, and can meet the requirements of large transmission assembly in a small space. At the same time, the operation efficiency is high, saving time and labor. The installation mechanism 1 includes a support frame 11, a bearing plate 12, and a deflection motor 13. The support frame 11 is distributed on the left and right as a whole, specifically, as shown in FIG. Figure 5As shown: the support frame 11 includes a base 111 and side wing plates 112. The base 111 is distributed on the left and right, and the side wing plates 112 are two symmetrically distributed. The side wing plates are vertically distributed and arranged on the left and right sides of the base 111. The side wing plates and the base can be connected by bolts or fixed by welding. The purpose of such a setting is to serve as a carrier and provide sufficient stability. In a preferred embodiment, a material plate 15 is also provided between the two side wing plates 112. The material plates are distributed on the left and right, and the material plates can be arranged in multiple layers. Among them, as Figure 5 As shown: the material plate 15 is provided with a plurality of evenly distributed material slots 151 and tool slots 152 for storing tools; wherein, there is no interference in the movement between the material plate and the carrier plate. The material slots are of various specifications and models, and can be used to place bearings, shafts and other gearbox assembly parts. The purpose of such a setting is to make rational use of space, reasonably set up partitions within the limited support space, provide identification storage for bearings and other parts, ensure that the workstation is neat and orderly, and then facilitate the staff to take the corresponding things efficiently, avoiding the problems of the prior art such as the random placement of bearings and other parts and installation tools, unreasonable design, and low assembly efficiency. At the same time, multiple material slots and tool slots for storing tools are set on the material plate, and the storage partitions are reasonably set, which is neat and orderly, saving time and effort, and at the same time, the efficiency is improved by more than 25% compared with the traditional assembly table.

[0022] like Figure 2 As shown: In this embodiment, the bearing plate 12 is arranged on the support frame 11 through the rotating shaft 16. Specifically, the bearing plate is connected to the side wing plate through the rotating shaft. The deflection motor 13 is arranged on one of the side wing plates 112, and the output shaft is connected to the rotating shaft 16, so that the bearing plate 12 can deflect a preset angle R and maintain -60<R<+60; when in use, in order to ensure the limit of the rotation speed of the bearing plate, the deflection motor is also connected to a reducer, the purpose is to ensure the rationality and safety of the bearing plate deflection during the assembly operation of the new energy transmission. Among them, a step groove 121 is also provided in the center of the bearing plate 12 for adapting to the installation of the transmission case; the center of the step groove is a through hole. A fastener 14 for fastening the transmission case is also provided at the step groove 121. As shown Figure 2 As shown in FIG. 1 , in a preferred embodiment, the fasteners 14 are symmetrically distributed in two groups, and each group of the fasteners 14 includes a first cylinder 141, a cross arm 142, a connecting arm 143 and a pressing plate 144. Figure 3 As shown: the first cylinder 141 is vertically distributed and arranged on the bearing plate 12 and is located at the outer edge of the stepped groove. The cross arm 142 is vertically connected to the output end of the first cylinder 141; the connecting arm 143 extends vertically downward and is distributed and installed on one side of the cross arm 142, and the cross arm and the connecting arm can adopt an integrated structure. The clamping plate 144 is arranged on the connecting arm 143 to complete the clamping and fixing operation at the outer edge of the transmission case.

[0023] The cross arm is connected to the first cylinder through a connecting seat, and the cross arm can rotate relative to the output end of the first cylinder. In the initial state, the first cylinder is in an extended state, and the clamping plate is located on one side, and there is no motion interference with the step groove. At this time, the bearing plate is in a horizontal state. When the transmission case is transferred to the step groove, the staff rotates the cross arm so that the clamping plate is perpendicular to the step groove, that is, the clamping plate is perpendicular to the outer edge of the transmission case, and there is motion interference. At this time, the switch of the first cylinder is started, and the first cylinder begins to shrink, thereby driving the clamping plate to continue to move downward and complete the positioning and tightening operation of the transmission case with a preset tightening force. In this way, it is convenient to assemble the transmission parts and prevent them from shaking during installation. At the same time, it also provides the convenience and tightening force of the bearing plate driving the transmission case to deflect the preset angle for reasonable and efficient installation of parts or bolts. The present invention further optimizes the assembly structure of the transmission, cooperates with the bearing plate and the deflection motor so that the bearing plate can deflect the preset angle R to achieve the best working angle when assembling or positioning the transmission parts. Such an operation method saves time and effort, and the operation is orderly.

[0024] like Figure 1 As shown: In this embodiment, the conveying mechanism 2 includes a support column 21, a support plate 22, a rotating screw 23, a guide rod 24, a conveying motor 25 and a hoisting member 26. The support columns 21 are vertically distributed on the support frame 11, and are evenly distributed in multiple numbers; specifically, the support columns are arranged on the side wing plates. The support plate 22 is horizontally distributed and fixed to the support column 21 by welding; the rotating screw 23 is arranged on the two side walls of the support plate 22 in a left-right distribution, and a bearing is also provided at the connection between the two; such an arrangement ensures the smoothness of rotation. The guide rod 24 is also arranged between the two side walls of the support plate 22, and is kept parallel to the rotating screw 23; such an arrangement provides a moving guide and a bearing basis for the moving seat. The conveying motor 25 is arranged on the support plate 22, and one end is connected to the rotating screw 23; such an arrangement allows the conveying motor to drive the rotating screw to rotate. The conveying motor 25 adopts a servo-controlled motor, and in the initial state, the first limit for fixing and hoisting the transmission case, the second limit for assembling internal parts of the transmission case, and the third limit for the air tightness test after the transmission case is assembled are preset. Specifically, the first limit is the material area where the materials of the transmission case are stored. In the initial state, the conveying motor drives the moving seat to move directly above the material area. This is the first limit of the moving seat. The second limit is the transmission case assembly operation area. In the second limit state, the moving seat is located directly above the step groove. The third limit is the air tightness test operation area of ​​the transmission. In the third limit state, the moving seat is located directly above the detection plate. The conveying motor can be connected to a PLC controller to achieve precise mobile control of the position. The control principle of the PLC controller is a prior art for technicians in this field, so it will not be repeated.

[0025] like Figure 1 As shown: In a preferred embodiment, the hoisting member 26 is integrally arranged on the rotating screw 23 and the guide rod 24, and is configured to be able to lift and lower the preset height at the preset first limit position to complete the fastening and hoisting of the transmission case and move it to the preset second limit position to complete the assembly of the transmission parts, and then continue to move rightward by a preset distance to reach the third limit position to complete the air tightness test of the transmission case. Figure 6 As shown: wherein, the hoisting member 26 comprises a moving seat 261, a second cylinder 262, a fixed seat 263, a connecting rod 264, a tripod 265 and a hook 266. The moving seat 261 is sleeved and installed on the rotating screw 23 and the guide rod 24, and the moving seat 261 and the rotating screw 23 are in threaded rotational connection, and the moving seat 261 and the guide rod 24 are in sliding connection. With such a configuration, the conveying motor rotates forward, which can drive the moving seat to move right along the rotating screw. The conveying motor reverses, which can drive the moving seat to move left along the rotating screw. The second cylinder 262 is vertically distributed on the moving seat 261, and the output end is connected and installed with the fixed seat 263; the second cylinder extends, driving the fixed seat to move downward. The second cylinder contracts, driving the fixed seat to move upward. One end of the connecting rod 264 is rotatably connected to the fixed seat 263, and the other end is connected to the tripod 265. The hooks 266 are two symmetrically distributed front and back, and the hooks 266 are L-shaped structures, and one end is connected to the tripod 265. The connecting rod 264, the tripod and the hook 266 are an integrated structure, and are two groups symmetrically distributed left and right. In this way, during the initial operation, the second cylinder is in a retracted state. Then the staff starts the second cylinder, and the second cylinder extends and drives the fixed seat to move down until the hook can be inserted into the bottom of the transmission case. Then the staff assists the hook and the tripod as a whole, and inserts the ends of the hooks on both sides into the bottom of the new energy transmission case to complete the fixation. The next step is to start the second cylinder to retract and complete the reset. Then start the conveying motor to rotate forward, thereby driving the moving seat and the hoisting part as a whole and the transmission case to move right along the rotating screw and the guide rod until the second limit of the moving seat is reached, and the moving seat is located directly above the step groove. The next step is to start the second cylinder to extend, thereby driving the new energy transmission case to move down to the stepped groove as a whole, and then start the first cylinder to complete the operation of fixing the outer edge of the transmission case through the clamping plate. The present invention integrates material zoning planning and transportation, multi-angle efficient assembly of transmission parts, and efficient operation of air tightness testing and inspection. The manufacturing process is simplified, and the material saving is more than 30%, which effectively reduces the manufacturing cost of the new energy transmission assembly line.

[0026] like Figure 2As shown: In this embodiment, the detection mechanism 3 includes a detection platform 31, a detection plate 32, a detection instrument body 33, and a test tube 34. The detection platform 31 is arranged on the right side of the support frame 11 and is located below the support plate 22; the detection platform is connected and fixed to the side wing plate, and the end surface height of the detection platform is flush with the end surface of the load-bearing plate. The detection plate 32 is rotatably arranged on the detection platform 31; refer to Figure 7 As shown: a preferred technical solution, the center of the detection plate 32 is provided with a support shaft 37 extending vertically downward, and the support shaft 37 is connected to the detection platform 31 through a bearing. The lower end surface of the detection platform 31 is also provided with a rotating motor 38, and the rotating motor 38 is connected to the support shaft 37. With this arrangement, the start of the rotating motor will drive the support shaft to rotate, and then drive the detection plate to rotate. The purpose of such a setting is that there are differences in the airtightness test ports of new energy transmission cases of different models and specifications, and there are factors such as position height or horizontal deviation. Therefore, by modifying and upgrading the structure of the detection platform, through the cooperation of the rotating motor and the detection platform, the detection platform can drive the deflection movement of the transmission case, and then realize the corresponding adjustment of the airtightness test port, which has a wider adaptability.

[0027] Specific reference Figure 4 As shown: wherein the detector body 33 is fixedly mounted on one side of the detection platform 31 by bolts, and is connected to the test tube 34 by an air pipe 35. Figure 8 As shown: the test tube 34 includes a tube body 341, a pressure detection probe 342, and a sealing rubber joint 343. The tube body 341 is distributed front and back, and the outer diameter of the tube body is smaller than the inner diameter of the air tightness test port of the transmission case. An air flow channel 344 is provided inside the tube body, and the input end of the air flow channel 344 is connected to the air pipe 35, and the air pipe is long enough. An air hole 345 is provided at the front of the tube body 341; the pressure detection probe 342 is arranged at the front end of the tube body 341; the pressure detection probe maintains a signal connection with the detector body for real-time monitoring of air pressure parameters. The sealing rubber joint 343 is a truncated cone structure and is sleeved and installed on the tube body 341, and is located at the rear side of the air hole 345. The outer diameter of the small end of the sealing rubber head is smaller than the inner diameter of the air tightness test port of the transmission case, and the outer diameter of the large end is larger than the inner diameter of the air tightness test port of the transmission case; such a setting facilitates the formation of a seal on the port, thereby ensuring a normal environment for air tightness testing in the transmission case.

[0028] like Figure 4As shown: In this embodiment, an adjusting member 36 is also provided on one side of the test tube 34, so that the test tube 34 can rise to a preset height and move forward a preset distance to complete the port plugging operation of the transmission case air tightness test. Specifically, the adjusting member 36 includes an auxiliary plate 361, a third cylinder 362, an auxiliary seat 363, a guide column 364, a fourth cylinder 365 and a moving arm 366. The auxiliary plates 361 are two and are arranged on the outside of the detector body 33, and the two are fixed by welding. The guide column 364 is vertically distributed and arranged between the two auxiliary plates 361; the auxiliary seat 363 is sleeved and installed on the guide column 364, and the two are kept in sliding connection. One end of the third cylinder 362 is connected to the auxiliary plate 361 on one side, and the other end is connected to the auxiliary seat 363. With such a configuration, the expansion and contraction change of the third cylinder will drive the auxiliary seat to move up and down, thereby realizing the height adjustment of the test tube. In a preferred embodiment, a scale line is also provided on the guide column, thereby realizing the convenience and accuracy of adjustment. The fourth cylinder 365 is arranged on the auxiliary seat 363 in a front-to-back distribution; the bottom of the fourth cylinder is connected to the auxiliary seat by bolts. The movable arm 366 is an L-shaped structure, and the rear end is connected to the output end of the fourth cylinder 365, and the front end is connected and fixed to the test tube 34. In this arrangement, the expansion and contraction change of the fourth cylinder will drive the test tube to move forward and backward as a whole, completing the automatic insertion of the transmission air tightness test port.

[0029] like Figure 1 As shown: In this embodiment, a baffle 4 is also provided on the front side of the test bench 31; the purpose of such a setting is to provide a reverse support force when the test tube is inserted into the air tightness test port of the transmission case, so as to form a good tight sealing effect between the sealing rubber joint and the air tightness test port. In a preferred embodiment, a red and green indicator light 5 and a voice announcer 6 are also provided on the front side of the baffle 4, so that when the air tightness test of the transmission case is qualified, the green light of the red and green indicator light 5 is on, and the voice announcer 6 plays "qualified". When the air tightness test of the transmission case is unqualified, the red light of the red and green indicator light 5 is on, and the voice announcer 6 plays "unqualified". Such a setting is simple and clear, and further upgrades the air tightness test process structure. Through the cooperation of the auxiliary plate, the third cylinder, the auxiliary seat, the guide column, the fourth cylinder and the moving arm, the test tube can rise to a preset height and move forward a preset distance to complete the port sealing operation of the transmission case air tightness test, thereby realizing the automation of the transmission air tightness test. There is no need for manual pipeline insertion and tightening operations. At the same time, the height can be adjusted to perform air tightness tests on transmissions of different models and specifications. It has a wider adaptability, greatly improves the production efficiency of transmission assembly, and is more practical.

[0030] When the transmission parts and other components are assembled, the new energy transmission is driven by the hoisting parts to move right to the third limit of the moving seat under the control of the conveying motor. In this third limit state, the moving seat is directly above the test bench. Then the second cylinder is extended to move the transmission down to the test bench as a whole, and the transmission air tightness test port and the test tube are adjusted to be in the same vertical plane by rotating the motor. The next step is to start the third cylinder, and the center of the test tube is kept consistent with the transmission air tightness test port through height adjustment. Then the fourth cylinder is started, and the fourth cylinder is extended, thereby driving the test tube as a whole to move closer to the transmission until the sealing rubber joint on the test tube and the transmission air tightness test port complete the sealing and plugging operation. The staff then turns on the main body of the detector and starts the air tightness test operation on the transmission. The main body of the detector records real-time test data, and synchronously when the transmission case air tightness test is qualified, the green light of the red and green indicator light 5 lights up, and the voice announcer 6 plays "qualified". When the transmission case air tightness test is unqualified, the red light of the red and green indicator light 5 lights up, and the voice announcer 6 plays "unqualified".

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy transmission inspection and testing assembly production line, characterized by: It includes an installation mechanism, a conveying mechanism and a detection mechanism; the installation mechanism includes a support frame, a bearing plate and a deflection motor; the support frame is distributed on the left and right sides as a whole, the bearing plate is arranged on the support frame through a rotating shaft, the deflection motor is arranged on one of the side wing plates, and the output shaft is connected to the rotating shaft, so that the bearing plate can deflect a preset angle R and maintain -60<R<+60; wherein, a stepped groove is also provided in the center of the bearing plate for adapting to the installation of a transmission case; a fastener for fastening the transmission case is also provided at the stepped groove; the conveying ... deflection motor is arranged on one of the side wing plates; the output shaft is connected to the rotating shaft, so that the bearing plate can deflect a preset angle R and maintain -60<R<+60; wherein, a stepped groove is also provided in the center of the bearing plate for adapting to the installation of a transmission case; a fastener for fastening the transmission case is also provided at the stepped groove; the conveying mechanism includes a support frame, a bearing plate and a deflection motor; the deflection motor is arranged on the side wing plate; the deflection motor is arranged on the side wing plate; the deflection motor is arranged on the side wing plate; the deflection motor is arranged on the side wing plate; the deflection motor is arranged on the side wing plate; the deflection motor is arranged on the side wing The support frame comprises a support column, a support plate, a rotating screw, a guide rod, a conveying motor and a hanging piece; the support columns are vertically distributed on the support frame and are evenly distributed; the support plates are horizontally distributed and fixed to the support columns by welding; the rotating screws are distributed on the left and right sides of the support plate, and a bearing is also provided at the connection between the two; the guide rod is also arranged between the two side walls of the support plate and is kept parallel to the rotating screw; the conveying motor is arranged on the support plate, and one end is connected to the rotating screw; the hanging piece is arranged on the rotating screw and the guide rod as a whole, and The detection mechanism comprises a detection platform, a detection plate, a detection instrument body and a test tube; the detection platform is arranged on the right side of the support frame and is located below the support plate; the detection plate is rotatably arranged on the detection platform; the detection instrument body is fixedly installed on one side of the detection platform by bolts and connected to the test tube through an air pipe, and the test tube comprises a tube body, a pressure detection probe and a sealing rubber joint; the tube body is distributed front and back and an air flow channel is arranged inside, the input end of the air flow channel is connected to the air pipe, and an air hole is arranged at the front of the tube body; the pressure detection probe is arranged at the front end of the tube body; the sealing rubber joint is a truncated cone structure and is sleeved and installed on the tube body and is located at the rear side of the air hole; an adjusting member is also arranged on one side of the test tube so that the test tube can be raised to a preset height and moved forward a preset distance to complete the port plugging operation of the air tightness test of the transmission case.

2. A new energy transmission inspection and testing assembly production line as claimed in claim 1, characterized in that: The support frame includes a base and side wing plates; the base is distributed on the left and right, and the side wing plates are two symmetrically distributed and arranged on the left and right sides of the base.

3. A new energy transmission inspection and testing assembly production line as claimed in claim 2, characterized in that: A material plate is also provided between the two side wing plates, and the material plate is provided with a plurality of evenly distributed material slots and a tool slot for storing tools.

4. A new energy transmission inspection and testing assembly production line as claimed in claim 3, characterized in that: The fasteners are divided into two symmetrically distributed groups, and each group of the fasteners includes a first cylinder, a cross arm, a connecting arm and a clamping plate; the first cylinder is vertically distributed on the supporting plate, and the cross arm is vertically connected to the output end of the first cylinder; the connecting arm extends vertically downward and is distributed and installed on one side of the cross arm, and the clamping plate is arranged on the connecting arm to complete the clamping and fixing operation at the outer edge of the transmission case.

5. A new energy transmission inspection and testing assembly production line as claimed in claim 1, characterized in that: The lifting parts include a movable seat, a second cylinder, a fixed seat, a connecting rod, a tripod and a hook; the movable seat is sleeved and installed on the rotating screw and the guide rod, and the movable seat and the rotating screw maintain a threaded rotation connection, and the movable seat and the guide rod maintain a sliding connection; the second cylinder is vertically distributed on the movable seat, and the output end is connected and installed on the fixed seat; one end of the connecting rod is rotatably connected to the fixed seat, and the other end is connected to the tripod, and the hooks are two symmetrically distributed front and back, and the hook is an L-shaped structure, and one end is connected to the tripod.

6. A new energy transmission inspection and testing assembly production line as claimed in claim 5, characterized in that: The connecting rod, the tripod and the hook are an integrally formed structure and are in two groups that are symmetrically distributed on the left and right.

7. A new energy transmission inspection and testing assembly production line as claimed in claim 6, characterized in that: The conveying motor adopts a servo-controlled motor, and in the initial state, a first limit for fastening and hoisting the transmission case, a second limit for assembling internal parts of the transmission case, and a third limit for airtightness testing after the transmission case is assembled are preset.

8. A new energy transmission inspection and testing assembly production line as claimed in claim 7, characterized in that: A support shaft extending vertically downward is arranged at the center of the detection plate, and the support shaft is connected to the detection platform via a bearing; a rotating motor is also arranged on the lower end surface of the detection platform, and the rotating motor is connected to the support shaft.

9. A new energy transmission inspection and testing assembly production line as claimed in claim 8, characterized in that: The adjusting part includes an auxiliary plate, a third cylinder, an auxiliary seat, a guide column, a fourth cylinder and a movable arm; the auxiliary plates are two and distributed up and down and are arranged on the outside of the detector body, and the guide column is vertically distributed and arranged between the two auxiliary plates; the auxiliary seat is sleeved and installed on the guide column, and the two are kept in sliding connection; one end of the third cylinder is connected to the auxiliary plate on one side, and the other end is connected to the auxiliary seat; the fourth cylinder is distributed front and back and is arranged on the auxiliary seat; the movable arm is an L-shaped structure, and the rear end is connected to the output end of the fourth cylinder, and the front end is connected and fixed to the test tube.

10. A new energy transmission inspection and testing assembly production line as claimed in claim 9, characterized in that: A baffle is also provided on the front side of the test bench; a red and green indicator light and a voice announcer are also provided on the front side of the baffle, so that when the transmission case air tightness test is qualified, the green color of the red and green indicator light lights up, and the voice announcer plays "qualified" at the same time; when the transmission case air tightness test is unqualified, the red color of the red and green indicator light lights up, and the voice announcer plays "unqualified" at the same time.

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